1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
2 | /* |
3 | * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. |
4 | * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved. |
5 | */ |
6 | |
7 | #ifndef __LOPS_DOT_H__ |
8 | #define __LOPS_DOT_H__ |
9 | |
10 | #include <linux/list.h> |
11 | #include "incore.h" |
12 | |
13 | extern const struct gfs2_log_operations *gfs2_log_ops[]; |
14 | |
15 | void gfs2_log_incr_head(struct gfs2_sbd *sdp); |
16 | u64 gfs2_log_bmap(struct gfs2_jdesc *jd, unsigned int lbn); |
17 | void gfs2_log_write(struct gfs2_sbd *sdp, struct gfs2_jdesc *jd, |
18 | struct page *page, unsigned size, unsigned offset, |
19 | u64 blkno); |
20 | void gfs2_log_submit_bio(struct bio **biop, blk_opf_t opf); |
21 | void gfs2_pin(struct gfs2_sbd *sdp, struct buffer_head *bh); |
22 | int gfs2_find_jhead(struct gfs2_jdesc *jd, |
23 | struct gfs2_log_header_host *head, bool keep_cache); |
24 | void gfs2_drain_revokes(struct gfs2_sbd *sdp); |
25 | |
26 | static inline unsigned int buf_limit(struct gfs2_sbd *sdp) |
27 | { |
28 | return sdp->sd_ldptrs; |
29 | } |
30 | |
31 | static inline unsigned int databuf_limit(struct gfs2_sbd *sdp) |
32 | { |
33 | return sdp->sd_ldptrs / 2; |
34 | } |
35 | |
36 | static inline void lops_before_commit(struct gfs2_sbd *sdp, |
37 | struct gfs2_trans *tr) |
38 | { |
39 | int x; |
40 | for (x = 0; gfs2_log_ops[x]; x++) |
41 | if (gfs2_log_ops[x]->lo_before_commit) |
42 | gfs2_log_ops[x]->lo_before_commit(sdp, tr); |
43 | } |
44 | |
45 | static inline void lops_after_commit(struct gfs2_sbd *sdp, |
46 | struct gfs2_trans *tr) |
47 | { |
48 | int x; |
49 | for (x = 0; gfs2_log_ops[x]; x++) |
50 | if (gfs2_log_ops[x]->lo_after_commit) |
51 | gfs2_log_ops[x]->lo_after_commit(sdp, tr); |
52 | } |
53 | |
54 | static inline void lops_before_scan(struct gfs2_jdesc *jd, |
55 | struct gfs2_log_header_host *head, |
56 | unsigned int pass) |
57 | { |
58 | int x; |
59 | for (x = 0; gfs2_log_ops[x]; x++) |
60 | if (gfs2_log_ops[x]->lo_before_scan) |
61 | gfs2_log_ops[x]->lo_before_scan(jd, head, pass); |
62 | } |
63 | |
64 | static inline int lops_scan_elements(struct gfs2_jdesc *jd, u32 start, |
65 | struct gfs2_log_descriptor *ld, |
66 | __be64 *ptr, |
67 | unsigned int pass) |
68 | { |
69 | int x, error; |
70 | for (x = 0; gfs2_log_ops[x]; x++) |
71 | if (gfs2_log_ops[x]->lo_scan_elements) { |
72 | error = gfs2_log_ops[x]->lo_scan_elements(jd, start, |
73 | ld, ptr, pass); |
74 | if (error) |
75 | return error; |
76 | } |
77 | |
78 | return 0; |
79 | } |
80 | |
81 | static inline void lops_after_scan(struct gfs2_jdesc *jd, int error, |
82 | unsigned int pass) |
83 | { |
84 | int x; |
85 | for (x = 0; gfs2_log_ops[x]; x++) |
86 | if (gfs2_log_ops[x]->lo_before_scan) |
87 | gfs2_log_ops[x]->lo_after_scan(jd, error, pass); |
88 | } |
89 | |
90 | #endif /* __LOPS_DOT_H__ */ |
91 | |
92 | |